On Jun 29, 8:12*am, jcarlyle wrote:
Can anyone recommend a simple, effective method for removing outward
horizontal bulges in the top rail of Cobra trailers?

I had a trailer of that vintage and sometime around 1990 I got a
repair kit from Spindelberger.

It consisted of a couple of aluminum bars perhaps a foot long that
were bent to fit inside the trailer and stiffen the bow near the lift
struts. I used a come along to squeeze the trailer lid to a specified
width, then drilled and installed the stiffeners on the inside. That
did the trick to straighten the sides.

So, contact Spindelberger and get the repair kit.

-Tom